What is the reason why the car suddenly does not catch fire?

The reason why the car won't catch fire. The reasons why the car does not catch fire are generally as follows:

1. The battery is out of power or the fuel tank is out of oil;

2. The gear is wrong or the steering wheel is locked and cannot be started;

3. Automobile circuit or electronic faults, such as spark plug damage, fuse blowout, oil pump failure.

4. Oil problems, the engine cannot work normally due to bad fuel, etc. If the starter is functioning properly when the ignition starts, it is not because the battery is dead, but for other reasons. There are two common reasons.

One is that the idle motor or throttle is seriously damaged or carbon deposits, and the other is that the gasoline pump is damaged. Ignition failures are now rare because each spark plug is an independent ignition coil that does not break at the same time. How to tell if the idle motor or throttle is faulty, just ignite the ignition and release the throttle repeatedly.

If the idle motor fails, you can start it by pressing the accelerator. There are also two situations where ignition cannot be achieved due to improper operation, which is occasionally encountered. It is an automatic transmission car that ignites at point D, stops temporarily at point D, and then turns off directly.

When restarting, I forgot that the gear was not in P gear, and the ignition could not be started. The second is manual blocking. Vehicles that need to press the clutch ignition forget to press the clutch, or the clutch does not start because the foot pad is too thick.

In both cases, there was no sound when the ignition was started and there was no response when the ignition was started. In this unresponsive situation, the first thing to consider is the issue of the P gear and clutch. The vehicle battery is dead or damaged, the battery life expires, or the battery is damaged when the vehicle is parked for a long time; The battery power loss may be due to the fact that the ignition switch of the car is turned on, and when the vehicle is not started, the headlights are turned on for a long time, and high-power entertainment systems such as high-power audio are always used.

Hello, you need to judge what kind of reason is the reason for not ignition.

The first type: out of gas.

If your car has very little oil, or the fuel gauge shows that it has been below the red line, it will naturally not ignite, when you find that the car is not on fire, you should look at the fuel gauge as soon as possible, to see if there is still oil, and do not wait until the fuel tank bottoms out to refuel, which will not only affect the life of the engine, but also affect the life of the oil pump, and even the oil pump will work without oil, which will be dangerous.

The second type: crankshaft position sensor failure.

The crankshaft position sensor is the most important sensor in the EFI engine, especially in the centralized control system, and it is also the sensor shared by the ignition system and the fuel injection system. The function of the crankshaft position sensor is to monitor the position of the crankshaft, so that the engine computer can sense the speed signal, if the crankshaft position sensor fails, the computer will not be able to detect the speed signal, and it will not be able to tell whether you are ignition, and it will not be ignited. The third type:

If the starter car encounters these problems, it is recommended that you check whether the starter is faulty: first, the ignition switch is obviously pressed, and the starter is also rotating at high speed, but the engine just does not respond. This problem is actually very simple, it can be basically determined that the problem lies in the starter, didn't it be said above, the DC engine outputs kinetic energy, and the kinetic energy is transmitted to the engine by the transmission mechanism through the driving gear, so the problem must be in this transmission process.

It is usually caused by the wear of the drive gears. The second is to press the ignition switch, but even the starter does not move. This is usually a problem with the wiring, the battery-powered power cord may be burned out, or the starting relay may be broken.

Fourth: the battery is out of power.

The car battery is out of power due to long-term parking, the service life of the car battery is up, the generator is damaged, the electrolyte is insufficient or leaking, the fuse is burned out, the car battery pile head is corroded, and the battery is overused. In addition, the installation of xenon headlights, high-power audio, etc. are also the causes of vehicle circuit failures. The situation of the vehicle without power is easy to check, just press the horn to know.

Fifth: excessive carbon deposits.

Too much carbon deposition will cause the ignition of the spark plug of the car to be poor, the valve is not tight, and the fuel injection nozzle is not good, resulting in the lack of fire in the car, the acceleration is weak, the machine is shaking, and it will not catch fire in serious cases. Too much carbon deposits in the throttle valve will cause air to circulate and no air will be able to catch fire if no air comes in. In the case of too much carbon accumulation on the throttle valve and it can't catch fire, you can try a little oil, and maybe you can ignite it smoothly.

There are many times in life that the car does not catch fire, what is the reason, the rabbit takes you to understand the reason, generally the car does not catch fire and do not need to worry, sometimes it may be a problem during operation, the most common is that the steering wheel is locked.

Hello, there are many reasons for not catching fire, the most common reason is that the battery is losing power, you can check the voltage of the car, if the voltage is too low, you need to use the rescue service to connect the phone,

Many people will always have this or that problem with the use of the vehicle after owning a car, and many of them have experienced the situation of suddenly not catching fire. In such a situation, many car owners panic, in fact, it is important to stay calm and check the specific situation.

What is the reason why the car does not catch fire?

It is a relatively common fault that the car does not catch fire, especially for older cars, which are prone to this kind of failure. The most common reason for not catching fire is the loss of battery power, which is also the easiest in rescue, you only need to use another electric car to take a ride, and the car can continue to drive. Other reasons cannot catch fire, generally speaking, they cannot be solved on the spot, and they must be towed to the repair shop with a trailer to find the fault.

Today, let's talk about the failure to ignite, how to determine whether the battery is losing power or other faults?

Generally, just listen to the sound when starting can be roughly judged, can not see whether the headlights or instruments are bright, there are many people who say that their car is not on fire is not out of power, the reason is that the headlights are also bright and the horn is sounding, many old drivers used to judge so. Its practical headlights and horns are very inaccurate to judge whether the battery has electricity, because they use very little electricity, unless there is almost no electricity, the headlights are not lit, the horn does not sound, and they will not be abnormal if they have a little electricity. The current required by the starter is very large, and the battery voltage is slightly insufficient and it cannot be rotated.

A normal battery is 12 volts, and when the voltage is lower than 11 volts, the vehicle cannot be started.

The battery power loss encountered in the actual rescue, the vast majority of cars are not without any electricity, so there will be a sound from the starter when starting. One is the weak start, there is a loud sound of clicking in the normal start, the starter rotates obviously weak, the rotation is slow, and the sound becomes smaller, which is the battery power loss. The second is that only a snapping sound will be heard when starting, and then there will be no sound, which is also a manifestation of battery power loss.

If there is no sound at start, but the meter is dimmed and the headlights are also dimmed, this is a serious loss of battery power.

If the starter runs normally when ignition, it is not because the battery is losing power, but because of other reasons. There are two most common reasons, one is that the idle motor or throttle is seriously damaged or damaged, and the other is that the gasoline pump is damaged, and it is now rare to fail to ignite due to ignition failure, because each spark plug is an independent ignition coil and will not be damaged at the same time. How to determine whether it is an idle motor or throttle failure, just press the throttle repeatedly while igniting.

If it is an idle motor failure, you can press the accelerator to ignite, if you still can't play, you generally can't solve it, you can call rescue.

There are several reasons why the car won't start: one. No oil. Two. Power. Three. No air intake.

Let's analyze these four items approximately:

One. No oil.

The reasons for the failure are:1The oil pump relay is working poorly. 2.The oil pump is not working well. 3.Out of gas.

Fault Detection: 1Detection of oil pump relays:

Turn on the key switch and don't hit the motor, you will hear a click, which means that the relay is working properly! If there is a continuous clicking sound, check whether the tie wire is loose. If the relay is judged to be damaged, the light relay can be interchanged with the oil pump relay.

Drive to the repair shop and buy a new relay.

2.Detection of oil pump: Generally, it is checked with an oil pressure gauge, because it is self-excluded.

There is no oil pressure gauge! The easiest way to do this is to remove the tubing and turn on the key switch on the position. Do not start the motor.

If the oil pipe is injected, it means that the oil pump is normal. On the contrary, it is not normal.

Two. Power. Cause of failure:1The head of the battery pile is loose. 2.High-voltage ignition coil.

Damage. 3.The cylinder line is damaged. 4.Whether the starting relay is plugged in properly or not, it is damaged. 5.Whether the insurance is burned out. 6.Whether the motor is working properly. 7.Whether the main output cable of the computer case is loose.

Fault Detection: 1Detection of loose battery pile head: observe whether the instrument is displayed, if the whole car has no electricity, open the hood, and observe whether the battery pile head connection is loose and oxidized. Loosen with a wrench.

Fastening, oxidation with boiling water poured on the pile head.

2.Ignition coil detection: you can use a multimeter.

Check the resistance value of its primary and secondary coils, it should be within the range, and the secondary resistance should be larger than the primary resistance! But that's not sure if it's in good condition! Unplug the cylinder wire, observe it for flashover, and see if there is any leakage in the insulation!

The jumping fire should be blue, and the sparks are thick and long!

3.Detection of steel wire: check the resistance value with a multimeter, which should be within the load range. Unplug the cylinder cord and observe it for a flashover. Or skip the fire and replace.

4.Detection of starting relay: There is a problem with the general relay, and there is no response when hitting the motor. Plug and unplug the relay again to see if it starts normally! Replace the relay or motor shorted.

5.Detection of the fuse: Open the fuse and observe whether the fuse indicator is normal and whether the fuse is burned. Replace the fuse.

6.Motor detection: mainly listen to whether the sound of the motor is normal. If it's a motor carbon brush.

The wear is severe, and the motor can be temporarily activated by striking it with a hammer. Go back to the repair shop for replacement.

7.Whether the main output line of the computer box is loose: check whether the plug-in of the computer box and its wiring and each sensor is loose. Fastening is recommended.

Three, no air intake.

Cause of failure: eccentric wheel.

Damage and wear of the eccentric shaft cause the intake and exhaust valves to fail to open and close.

Troubleshooting: Call a tow truck!

There are several reasons for this:

First, the battery loses power.

3. The ignition system is not in good working condition.

Extended Materials. 1 Produces enough voltage to break down the spark plug gap.

The voltage required for the spark plug electrode to break down and generate a spark is called the breakdown voltage. The secondary voltage generated by the ignition system must be higher than the breakdown voltage in order for the spark plug to skip fire. The magnitude of the breakdown voltage is affected by many factors, the main of which are:

1) Spark plug electrode gap and shape.

The larger the gap between the spark plug electrodes, the higher the breakdown voltage;

The tip of the electrode is angular and the required breakdown voltage is low.

2) The pressure and temperature of the gas mixture in the cylinder.

The higher the pressure of the mixture, the lower the temperature, the higher the breakdown voltage, 3) the temperature of the electrode.

The higher the temperature of the spark plug electrode, the lower the density of the gas around the electrode and the lower the breakdown voltage.

2 The spark should have sufficient energy.

When the engine is working normally, only 1 5 mJ of spark energy is required because the temperature at the end of the mixture compression is close to its autoignition temperature. However, when the mixture is too thick or too thin, when the engine starts, idles or opens the throttle sharply, a high spark energy is required.

3. The ignition time should be adapted to the working condition of the engine.

First of all, the ignition system should be ignited in the order in which the engines work. Secondly, ignition must be carried out at the most favorable moment.

If you turn on the ACC dashboard and the ACC dashboard is not on, open the cover to see if the battery positive and negative connection wires are loose, if you open the ACC dashboard is on, but a fire will go out that is the battery is dead, if it is to maintain the battery, see the liquid level is **, add some water if there is less water, and find a trolley to give you electricity. If the dashboard display is normal, you can't light it, look at the instrument.

There are two possibilities.

1.The battery loses power, resulting in insufficient power to provide power to the starter motor.

2.The starting motor is stuck, the battery storage is sufficient, and the starting motor relay squeaks.

There are many reasons why the car suddenly fails to ignite, the main reasons are that the oil circuit is blocked, the fuel is exhausted, the battery is out of power or the line is not in good contact.

The reasons why the car engine does not catch fire are as follows:

1. The car battery is insufficient or the fuel is insufficient, which is the easiest item to check, and it is also the most likely to cause the car to not catch fire. The amount of fuel is easy to judge, the ignition key goes to the ON gear, one key to start the model without stepping on the brakes, press the start button twice, turn on the headlights, and the lights obviously change from strong to weak or simply not bright. Then press the horn, the horn sound is significantly weaker than usual, or it does not sound, which can be judged as the battery is insufficient.

Once these two situations occur, then you can choose to ask for help from surrounding car owners according to your own conditions, and apply for emergency measures such as taking electricity, borrowing fuel, and trailers.

2. The steering wheel can not be started when it is locked, which is an ordinary anti-theft function that many cars have, after pulling out the car key, the steering wheel is not back to the right or has to rotate, it will cause the steering wheel to start the self-locking function, the steering lock pin and the steering column are buckled together, the steering wheel can not move, and it can not catch fire.

The solution is very simple, that is, to twist the key while shaking the steering wheel, otherwise it is impossible to twist the key even if it is broken.

3. Check the gear of the car, under normal circumstances, P gear or N gear is the correct gear when the automatic transmission car starts. If the owner is careless and puts the gear in R gear or other gears, the result will not only be unable to ignite, but also cause potential safety hazards.

The car engine is powered on and does not respond.

1. The whole car is powered on and does not respond, and the instrument light is dim: under normal circumstances, when the dashboard self-test before starting the car, if the battery light is on, and it is obvious that the brightness of the dashboard is not as bright as under normal circumstances, it can be judged that the battery is losing power, or it has reached the service life.

Sometimes the instrument is not displayed, but when starting the car, you can clearly feel that the engine rotation frequency is extremely slow, which is also a precursor to the battery loss, and the best solution at this time is to change the battery in time.

2. The battery does not lose power, and the engine starts normally: after pressing the ignition, the engine sound is normal, and there is no obvious dimming of the screen or dimming of the indicator light in the car when working, indicating that there is no problem with the battery and the engine. If the fire does not ignite at this time, there may be a problem with the high-pressure oil pump, the trip computer, or the engine is not fueled, so this situation can only be called a tow truck rescue.